Triple 8 Brainsaver Helmet with EPS Liner - Gun Matte Rubber - Dual Certified - Delivering the same amazing quality as all of Triple 8's skateboard helmets, the Triple Eight Brainsaver Helmet with EPS Liner complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older. Construction of the EPS liner was engineered so that it now not only complies with U.S. CPSC Safety Standard for Bike for ages 5+, but it also complies with ASTM F-1492-08 Safety Standards for skateboarding and trick roller skating. The single-impact helmet design includes a polystyrene liner and is ideal for biking, skateboarding, long boarding, inline skating (roller blading), and roller derby use.